Analysis of the data from 25 mothers indicates that an infant's birth weight (g), $y$, can be estimated by a mother's weight $( \mathrm { kg } ) , x$, using the regression equation $y = 31 x + 1501$. For every ____kg increase in a mother's weight, the infant's birth weight increases by____ $\mathrm { g }$.
A) 31; 1501
B) 1; 31
C) 31; 1
D) 1501; 31

Question

Quizplus · Accepted Answer

The coefficient of $x$ in the regression equation $y = 31x + 1501$ is 31, indicating that for every 1 kg increase in a mother's weight, the infant's birth weight increases by 31 g.

Analysis of the Data from 25 Mothers Indicates That an Infant's